EP1054271A3 - Optical reflector and manufacturing method thereof - Google Patents

Optical reflector and manufacturing method thereof Download PDF

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Publication number
EP1054271A3
EP1054271A3 EP00304033A EP00304033A EP1054271A3 EP 1054271 A3 EP1054271 A3 EP 1054271A3 EP 00304033 A EP00304033 A EP 00304033A EP 00304033 A EP00304033 A EP 00304033A EP 1054271 A3 EP1054271 A3 EP 1054271A3
Authority
EP
European Patent Office
Prior art keywords
film
refractive index
optical reflector
manufacturing
visible light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00304033A
Other languages
German (de)
French (fr)
Other versions
EP1054271B1 (en
EP1054271A2 (en
Inventor
Toru c/o Nippon Sheet Glass Co. Ltd. Yamamoto
Masahiro c/o Nippon Sheet Glass Co. Ltd. Hirata
Yukio c/o Nippon Sheet Glass Co. Ltd. Sueyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Publication of EP1054271A2 publication Critical patent/EP1054271A2/en
Publication of EP1054271A3 publication Critical patent/EP1054271A3/en
Application granted granted Critical
Publication of EP1054271B1 publication Critical patent/EP1054271B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G02B5/0825—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only
    • G02B5/0833—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only comprising inorganic materials only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0883—Mirrors with a refractive index gradient
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/26—Reflecting filters

Abstract

In an optical reflector and a manufacturing method thereof, the reflector has superior durability and a high reflectivity to visible light, without color tones being apparent in the reflected light. The optical reflector comprises a glass substrate (1), on which are piled up a film (2) of refractive index n1, a film (3) of refractive index n2, a film (4) of refractive index n3, and a film (5) of refractive index n4, sequentially, wherein the thickness of the films are adjusted so that a relationship, n1 ≥ n4 > n3 > n2, is established among those refractive indices n1, n2, n3 and n4. The film (3) of refractive index n2 is from 30 nm to 60 nm in the film thickness, a reflectivity to visible light is equal to or greater than 75% upon the surface of the film (5) of refractive index n4, and the value
Figure 80000001
is from 0 to 10 when representing the color tone of reflected light upon this film by a* and b* (psychometric chroma coordinates).
EP00304033A 1999-05-13 2000-05-12 Optical reflector and manufacturing method thereof Expired - Lifetime EP1054271B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13237299 1999-05-13
JP11132372A JP2000327373A (en) 1999-05-13 1999-05-13 Light reflecting body and its production

Publications (3)

Publication Number Publication Date
EP1054271A2 EP1054271A2 (en) 2000-11-22
EP1054271A3 true EP1054271A3 (en) 2002-08-28
EP1054271B1 EP1054271B1 (en) 2004-11-03

Family

ID=15079840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00304033A Expired - Lifetime EP1054271B1 (en) 1999-05-13 2000-05-12 Optical reflector and manufacturing method thereof

Country Status (5)

Country Link
US (1) US6396633B1 (en)
EP (1) EP1054271B1 (en)
JP (1) JP2000327373A (en)
AT (1) ATE281656T1 (en)
DE (1) DE60015429D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4424932B2 (en) * 2003-07-31 2010-03-03 スリーエム イノベイティブ プロパティズ カンパニー MOLD FOR MICROSTRUCTURE REPLICATION AND METHOD FOR PRODUCING MATERIAL AND FLEXIBLE MOLD
EP2271879B1 (en) * 2007-12-21 2018-02-21 AGC Glass Europe Solar energy reflector
US20090188710A1 (en) * 2008-01-30 2009-07-30 Cisco Technology, Inc. System and method for forming filled vias and plated through holes
FR2936240B1 (en) * 2008-09-22 2012-08-03 Saint Gobain CORROSION RESISTANT MIRROR
US8319972B2 (en) 2010-04-28 2012-11-27 Raytheon Company Passive reflective tracking media compositions and methods for covertly tracking objects
JP2012042584A (en) * 2010-08-17 2012-03-01 Seiko Epson Corp Optical filter, optical filter module, spectrometry device, and optical device
JP5888124B2 (en) * 2012-05-30 2016-03-16 株式会社ニデック Multilayer filter and method for manufacturing multilayer filter
US10377664B2 (en) * 2014-11-12 2019-08-13 Pilkington Group Limited Coated glass article, display assembly made therewith and method of making a display assembly
WO2020037328A1 (en) * 2018-08-17 2020-02-20 The Research Foundation for State University of New York Beam-controlled spectral-selective architecture for a radiative cooler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268217A (en) * 1990-09-27 1993-12-07 Diamonex, Incorporated Abrasion wear resistant coated substrate product
US5745291A (en) * 1992-07-11 1998-04-28 Pilkington Glass Limited Mirror including a glass substrate and a pyrolytic silicon reflecting layer
US5891556A (en) * 1995-02-23 1999-04-06 Saint-Gobain Vitrage Transparent substrate with antireflection coating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5580364A (en) 1992-07-11 1996-12-03 Libbey-Owens-Ford Co. Method of producing a coated glass substrate exhibiting reflected color

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268217A (en) * 1990-09-27 1993-12-07 Diamonex, Incorporated Abrasion wear resistant coated substrate product
US5745291A (en) * 1992-07-11 1998-04-28 Pilkington Glass Limited Mirror including a glass substrate and a pyrolytic silicon reflecting layer
US5891556A (en) * 1995-02-23 1999-04-06 Saint-Gobain Vitrage Transparent substrate with antireflection coating

Also Published As

Publication number Publication date
JP2000327373A (en) 2000-11-28
EP1054271B1 (en) 2004-11-03
DE60015429D1 (en) 2004-12-09
EP1054271A2 (en) 2000-11-22
ATE281656T1 (en) 2004-11-15
US6396633B1 (en) 2002-05-28

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